T. H. Pham Thi, T. L. Nguyen, T. D. Nguyen, B. Doan, V. C. Cao, and T. T. Doan, “The international calibration procedure for B3 film dosimetry system to ensure the quality irradiated products by 10 MeV electron beam accelerators at VINAGAMMA”, Nucl. Sci. and Tech., vol. 7, no. 2, pp. 38-43, Jun. 2017.